Easy-to-follow video tutorials help you learn software, creative, and business skills.Become a member

Creating geometry

From: AutoCAD WS Essential Training

Video: Creating geometry

Even though AutoCAD WS contains a basic toolset, you'll be surprised at how much you can really do with this application. With a little ingenuity, AutoCAD WS can be used to draw just about anything. In this lesson, we'll take our first look at some of the drawing and editing tools. On my screen is a cross-section of a typical concrete curb and gutter. I'd like to re-create this section such that we can run through a typical workflow for constructing geometry. Let me mention that if you are already an AutoCAD user, you'll feel right at home working in this application.

Creating geometry

Even though AutoCAD WS contains a basic toolset, you'll be surprised at how much you can really do with this application. With a little ingenuity, AutoCAD WS can be used to draw just about anything. In this lesson, we'll take our first look at some of the drawing and editing tools. On my screen is a cross-section of a typical concrete curb and gutter. I'd like to re-create this section such that we can run through a typical workflow for constructing geometry. Let me mention that if you are already an AutoCAD user, you'll feel right at home working in this application.

I'm going to start by panning this over, to give myself some room on the right side. I'll then visit to draw a tab. This is what we can find a complete collection of drawing and editing tools. Now to start my drawing, I am going to create a rectangle that represents the outer boundary of this geometry. So I'll move up to Draw panel and launch the Rectangle command. I'll then click to define the lower-left corner, I'll pull up and to the right, and I'll enter a Length of 25 and press Tab and a Width of 18, and I'll press Enter when I'm finished.

Next, I'll select this rectangle, and I'll move up to the Modify panel and launch the Explode command. This will convert the edges into individual segments making them easier to offset, which is what I'm going to do next. I'd like to offset the lower edge up 4 inches to create this line. So I'll select the lower edge, I'll launch the Offset command and enter a distance of 4. I will then click above the line to choose the side. Next, I'd like to create these two circles. Looks like their centers fall 4 inches above the previous line.

So I will select my last line, launch the Offset command again, press Enter to accept the previous distance, and I'll click above the line to choose the side. Now it looks like if I offset this back edge to the left 4 inches, I will have a nice intersection that defines the center of this circle. And if I offset the front edge to the right 4 inches, I can find the center of this circle. So we'll go back to the Offset command. Now, I don't have to keep going to the top of the screen for that command. If you look right down here, there is a Contextual toolbar, and Offset is on the right side.

I'll offset this entity 4 inches to the right. I will then offset the back edge 4 inches to the left. Now I'll move up and launch the Circle command, and I'll use the built-in intersection object snap to snap to the intersection of these offsets, and it looks like the circle has a diameter of 0.75. Now AutoCAD WS doesn't allow us to enter diameters. So, I'm going to do a little math. Since the diameter is 0.75, the radius must be 0.375.

I'll then press Enter to re-launch the Circle command, and I'll create a similar circle at this other intersection. When I'm finished, I'll select my offsets. They're no longer necessary, and I'll press Delete to remove them from the drawing. Next, I'd like to find this intersection. It looks like if I offset the front edge to the right 18 inches and the top edge down 6 inches, I can find that corner. So I will select the front edge, I'll offset that 18 inches to the right, and I'll offset the top edge 6 inches down.

Let's do one more, I'd like to find this intersection. To get there, I will offset my back edge 6 inches to the left. Now I'll move up and launch the Line command, and I'll create a line from the end of this offset to the intersection of these two. I will then select my offsets and press Delete to remove them from the drawing. Now I'll create this line segment. It looks like it's drawn at a slope of three quarters of an inch per foot.

I'll use the Polyline command to create this entity. I'll start at the endpoint of my previous line. I will then move down and click the Ortho toggle to turn that on and to create the slope, I'm going to pull to the left and type 12 and press Enter, that would be a foot. I will then pull up and type 0.75 and press Enter, that would be three quarters of an inch. I will then use the Close option that we can see at the Command Line. I'll type C and press Enter. And this segment represents my slope.

Now, since I drew this entity as a Polyline, each of these segments is treated as a single object. No problem. I can use the Contextual toolbar to explode. I will then select the unnecessary segments, and I'll press Delete. Finally, I'd like to extend this line to the front edge of the part. I'll do that by selecting the front edge. I'll move up and launch the Extend command, and I'll click this line to project it to the front. When I'm finished, I'll press Escape. Now it looks like I can use these two straight segments to trim the top and the front edge of the section.

So I'll select both of my lines, I'll move up and launch the Trim command, and then I'll select the objects I'd like to trim, and I'll press Escape when I'm finished. Looks like the only thing we have left is to add a 2-inch fillet at this intersection and a 3-inch fillet at this one. I'm going to launch the Zoom Window command, and I'll zoom in on this area. We'll center it a little better on screen. As long as I'm here, I'll click to collapse the Command Line.

If you look at the Modification panel, you'll notice there's no Fillet command, that's all right. We can create these fillets manually. To create a 2-inch fillet at this upper intersection, what if I selected the top line and then offset it 2 inches down? Then what if I offset this front edge 2 inches back? Where these two lines intersect, I could create a circle with a radius of 2 inches to create my fillet.

All I have to do now is trim up the entities. Before I do this, let me mention that AutoCAD WS can be a little grumpy when it comes to trimming manual tangencies. So let's see how well this works. I'm going to select the circle first, that's my cutting edge. I'll then launch the Trim command, and I'll trim this segment, and this one. And it looks like only one of the segments is trimming, that's all right. I'm going to press the Escape. Instead, I'm going to trim the segments manually. I remember from geometry class that when a circle is tangent to a straight line segment, if I was to draw a line from the center of the circle perpendicular to the straight segment, it would pass through the point of tangency.

So if I was to draw a line from the center of this arc perpendicular to this line, I could use that to trim the geometry. Now I know what you are saying, there is no perpendicular object snap. That's correct, but take a look at this, this offset is parallel to this edge. What if I select it, launch the Rotate command? I could rotate it around the center of the circle -90 degrees. Now I have a perpendicular line. I can also select this segment. I'll launch the Rotate command. We'll rotate it around the intersection of the entities, 90 degrees.

Now I can use these two entities to trim my geometry. I'll select them and launch the Trim command, and then I'll trim off this stubborn straight segment and the inside of the circle. When I'm finished, I'll press Escape. I will then select my unnecessary line work and press Delete. Finally, we'll add the 3-inch fillet to this intersection. I'll select the front edge and offset it 3 inches to the left. I'll select the lower edge and offset it 3 inches up.

I'll then create a circle at the intersection with a radius of 3, and then we'll try and trim. I'll select the circle, Trim. I'll click this line, and this one. I'll press Escape when finished, I will then select this edge and this edge, we'll try and trim again. I'll click to take off the outside of the circle. And it looks like that one is not going to work. I'll press Escape, we'll just get that manually.

I'll take this edge that's parallel to the bottom. I'll select it and rotate around the intersection of the entities 90 degrees. I will then select this segment which is parallel to the front edge, and I'll rotate it around the intersection 90 degrees. This one is coming up a little short. That's all right. I will select my circle and use the Extend tool to extend the line to that edge.

I will then select each of these lines and use them to trim my circle. Finally, I'll select the unnecessary segments. Looks like I've got a small piece down here as well, and I'll press Delete to remove them from the drawing. Now that I'm finished, I'll move down and click to do with some extents. As you can see, even though AutoCAD WS has a basic toolset, you actually have the majority of the commands needed for most day-to-day production work. If you add a few geometric principles, you can even incorporate some of the forbidden features into your workflow.

Show transcript

This video is part of

Image for AutoCAD WS Essential Training
AutoCAD WS Essential Training

39 video lessons · 3387 viewers

Jeff Bartels
Author

 

Start learning today

Get unlimited access to all courses for just $25/month.

Become a member
Sometimes @lynda teaches me how to use a program and sometimes Lynda.com changes my life forever. @JosefShutter
@lynda lynda.com is an absolute life saver when it comes to learning todays software. Definitely recommend it! #higherlearning @Michael_Caraway
@lynda The best thing online! Your database of courses is great! To the mark and very helpful. Thanks! @ru22more
Got to create something yesterday I never thought I could do. #thanks @lynda @Ngventurella
I really do love @lynda as a learning platform. Never stop learning and developing, it’s probably our greatest gift as a species! @soundslikedavid
@lynda just subscribed to lynda.com all I can say its brilliant join now trust me @ButchSamurai
@lynda is an awesome resource. The membership is priceless if you take advantage of it. @diabetic_techie
One of the best decision I made this year. Buy a 1yr subscription to @lynda @cybercaptive
guys lynda.com (@lynda) is the best. So far I’ve learned Java, principles of OO programming, and now learning about MS project @lucasmitchell
Signed back up to @lynda dot com. I’ve missed it!! Proper geeking out right now! #timetolearn #geek @JayGodbold
Share a link to this course

What are exercise files?

Exercise files are the same files the author uses in the course. Save time by downloading the author's files instead of setting up your own files, and learn by following along with the instructor.

Can I take this course without the exercise files?

Yes! If you decide you would like the exercise files later, you can upgrade to a premium account any time.

Become a member Download sample files See plans and pricing

Please wait... please wait ...
Upgrade to get access to exercise files.

Exercise files video

How to use exercise files.

Learn by watching, listening, and doing, Exercise files are the same files the author uses in the course, so you can download them and follow along Premium memberships include access to all exercise files in the library.


Exercise files

Exercise files video

How to use exercise files.

For additional information on downloading and using exercise files, watch our instructional video or read the instructions in the FAQ .

This course includes free exercise files, so you can practice while you watch the course. To access all the exercise files in our library, become a Premium Member.

Join now Already a member? Log in

Are you sure you want to mark all the videos in this course as unwatched?

This will not affect your course history, your reports, or your certificates of completion for this course.


Mark all as unwatched Cancel

Congratulations

You have completed AutoCAD WS Essential Training.

Return to your organization's learning portal to continue training, or close this page.


OK
Become a member to add this course to a playlist

Join today and get unlimited access to the entire library of video courses—and create as many playlists as you like.

Get started

Already a member ?

Become a member to like this course.

Join today and get unlimited access to the entire library of video courses.

Get started

Already a member?

Exercise files

Learn by watching, listening, and doing! Exercise files are the same files the author uses in the course, so you can download them and follow along. Exercise files are available with all Premium memberships. Learn more

Get started

Already a Premium member?

Exercise files video

How to use exercise files.

Ask a question

Thanks for contacting us.
You’ll hear from our Customer Service team within 24 hours.

Please enter the text shown below:

The classic layout automatically defaults to the latest Flash Player.

To choose a different player, hold the cursor over your name at the top right of any lynda.com page and choose Site preferences from the dropdown menu.

Continue to classic layout Stay on new layout
Exercise files

Access exercise files from a button right under the course name.

Mark videos as unwatched

Remove icons showing you already watched videos if you want to start over.

Control your viewing experience

Make the video wide, narrow, full-screen, or pop the player out of the page into its own window.

Interactive transcripts

Click on text in the transcript to jump to that spot in the video. As the video plays, the relevant spot in the transcript will be highlighted.

Are you sure you want to delete this note?

No

Your file was successfully uploaded.

Thanks for signing up.

We’ll send you a confirmation email shortly.


Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

Keep up with news, tips, and latest courses with emails from lynda.com.

Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

   
submit Lightbox submit clicked
Terms and conditions of use

We've updated our terms and conditions (now called terms of service).Go
Review and accept our updated terms of service.